java.util.Properties

java.util.Properties 类可在所有java程序中应用；

在android 中，相对于xml解析更简单；

1.可以以文件形式保存和加载

<span style="font-size:18px;">import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.Properties;

public Properties loadConfig(Context context, String file) {
Properties properties = new Properties();
try {
FileInputStream s = new FileInputStream(file);
properties.load(s);
} catch (Exception e) {
e.printStackTrace();
}
return properties;
}

public void saveConfig(Context context, String file, Properties properties) {
try {
FileOutputStream s = new FileOutputStream(file, false);
properties.store(s, "");
} catch (Exception e){
e.printStackTrace();
}
}  </span>

<span style="font-size:18px;">Properties prop = new Properties();
prop.put("prop1", "abc");
prop.put("prop2", 1);
prop.put("prop3", 3.14);
saveConfig(this, "/sdcard/config.dat", prop);  </span>

<span style="font-size:18px;">Properties prop = loadConfig(this, "/sdcard/config.dat");
String prop1 = prop.get("prop1");  </span>

2.直接从raw文件夹中的*.properties文件中读取（以id描述符打开raw资源文件）

<span style="font-size:18px;">private Properties loadProperties() {
//        InputStream in = null;
//        Properties props = null;
//        try {
//            in = getClass().getResourceAsStream(
//                    "/org/androidpn/client/client.properties");
//            if (in != null) {
//                props = new Properties();
//                props.load(in);
//            } else {
//                Log.e(LOGTAG, "Could not find the properties file.");
//            }
//        } catch (IOException e) {
//            Log.e(LOGTAG, "Could not find the properties file.", e);
//        } finally {
//            if (in != null)
//                try {
//                    in.close();
//                } catch (Throwable ignore) {
//                }
//        }
//        return props;

Properties props = new Properties();
try {
int id = context.getResources().getIdentifier("androidpn", "raw",
context.getPackageName());
props.load(context.getResources().openRawResource(id));
} catch (Exception e) {
Log.e(LOGTAG, "Could not find the properties file.", e);
// e.printStackTrace();
}
return props;
}</span>

根据key取

props.getProperty("key", "default-value");